Meat-tenderer



2 Sheets-Sheet 1Y (No Modem C. BISCHOFF. MEAT TENDERBR.

No. 434,238. Patented Aug. 12, 1890.

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2 sheets-sheet 2.

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'- BISHOFP.

MEAT TENDERER Patented Aug. 12 1890. n

@mum/vbo@ @ohl/ To all whom it may concern:

UNITED STATES PATENT OFFICE.w

CARL BISCI-IOFF, OF ALLEGIIENY, PENNSYLVANIA.

MEAT-TENDERER.

SPECIFICATION forming part of Letters Patent No. 434,238, dated August 12, 1890.

Application filed June 6, 1890. Serial No. 354,423. (No model.)

Be it known that I, CARL BISCHOFF, acitizen of the United States7 residing at Allegheny, in the c ounty of Allegheny-and State of Pennsylvania, have invented certain new and useful Improvements in Meat-Tenderers; andI do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification. .The object of my invention is to provide a simple, cheap, and effective meat-tenderer of Athe class known as rotary, which can be easily operated, and which will overcome many of the objectionable features of prior devices for the same purpose; and with these objects in view theinvention consists in a certain novel construction and combination of devices, which are fully described hereinafter in connection with the accompanying drawings, and specifically pointed outin the claims hereto appended.

In the drawings, Figure l is front view of a machine embodying my improvements.

Fig. 2 is a side View to show the manner of gearingthe rolls together. Fig. 3 is a similaroview looking at the opposite side of the machine. Fig. l is a sectional view on line @c of Fig. 1. Fig. 5 is a detail view of one of the removable rings or sleeves. detail sectional view of a bearing. Y

The frame of the improved meat-tenderer consists of the base-plate A, to the ends of which are attached the parallel vertical side plates B B', which are connected together at their upper ends by the cross-bar C. The side plate B is provided at its opposite edges with the removable sections or bars b b, which are secured in their places by screws or boltsc c, and the other side plate B is provided at its opposite edges with the removable sections or bars b b', similar to the sections or bars b b. The rolls D E F are mounted in bearings inthe said kside plates,'said bearings being formed in the meeting edges of the sides and their removable sections or bars, whereby to place the rolls in position or remove them Fig. Gisa from the machine it is simply necessaryl to detach the sections or bars b and b' from their respective sides, when the bearings are exposed. The roll D isarranged vertically over the roll E, and both rolls are provided with radial teeth or spurs G, which are tapered toward their outer ends. The teeth or spurs of the roll D almost touch the surface of the roll E, and the teeth of the roll E almost touch the surface of the roll D, and thus the teeth o r spurs of the two rolls intermesh or lit between each other during the rotation of the parts. These teeth or spurs are arranged around the rolls in circumferential series, as shown clearly in the drawings, the spaces between the adjoining series of one roll being sufficient to allow the teeth or spurs of theother roll to pass. The roll F is arranged in front of the roll E with its axis slightly below the plane of the axis of the roll E, and is provided with teeth or studs arranged in circumferential series similar to the other rolls. The teeth of the rollF are arranged to almost touch the surface of the roll E during rotation, for a purpose to be hereinafter explained. These rolls D E F are reduced at their bearings, so as to form shoulders d d to bear against opposite surfaces of the side plates to prevent longitudinal vibration of the rolls, the removable sections or bars on the edges of the side plates enabling the rolls to be fitted in their bearings without difficulty.

The rolls D E F are extended beyond the side plate B to form extensions D E F', whereby meat having large bones maybe passed between the rolls and chopped without allowing thel bones to come in contact therewith. The bones are allowed to pass along at the ends of the rolls while the meat IOOl idler M, the pinion L being of the same size as the pinion I, so that the roll F rotates at the same speed as roll E.

By the arrangement of the teeth on the rolls it will be seen that they work very closely together without interference, and the meat is closely perforated and the fibers are thoroughly broken.

As the roll E rotates more rapidly than the roll D, it will be understood that there is a tendency on the part of the lower roll to carry the meat faster than the upper roll, and therefore the result is that the meat is stretched.' Thus the meat is perforated or chopped, thereby breaking the fibers, and at the same time it is stretched, and thereby still further improved, as this preparation enables it to be more thoroughly cooked.

The teeth on the guiding and cleaning roll F are somewhat longer than the teeth of the roll E, thus still further stretching the meat as it is drawn from between the rolls D E. The roll F rotates in the opposite direction to that of the roll E, and the ends of its teeth pass so close to the surface of said roll that any meat which may cling to the surface is removed and carried along with the body of the steak. There is a tendency always for the meat to follow the lower roll and become 4wrapped around the same, thus clogging the rolls and interfering with the operation of the machine; but the teeth of the roll F catch the meat as it is passing over the roll E and drawit out to the front, and thus always keep the last-named roll free.

Apivoted board or platform O is connected to the frame of the machine, the rod or rollerbar P at its inner end being reduced to fit in bearings which are formed in the meeting edges of the side plates and their removable sections or bars. The board or platform is slotted, as seen at p p, to fit around the edges of the sections or bars. This board or platform is pivoted to enable it to be folded up .against the frame of the machine so as to oecupy less space when not in use.

The shafts of t-he rolls D E F consist each of a central core R, which is octagonal in cross-section, and the teeth or spurs are secured to (or preferably formed integral with) rings or sleeves S, the inner surfaces of which are oetagonal to lit snugly and firmly on the core. The rings or sleeves are extended laterally a short distance on each side of the teeth or spurs, and the ends of adjoining rings or sleeves abut, as shown clearly in the drawings, so as to allow no lateral play.

Obviously the teeth or spurs can be formed directly on the rolls or may be secured separately thereto; but this construction would be difficult and tedious, and I have found it more convenient in practice to form the teeth or spurs on separate rings or sleeves, as above described, one series of the teeth being carried by each ring or sleeve. In this way the teeth or spurs are readily attached to the roll, and when one or more of the teeth become injured or broken a new ring or sleeve may be substituted. Furthermore, it will be understood that the teeth at the center of the roll will be subjected to more strain and wear than those near the ends of the roll, and therefore in order to equalize the wear the rings or sleeves may be interchanged at times, so as to bring those which were near the ends of the roll to the center. Furthermore, this construction enables the rolls to be entirely taken apart to facilitate cleaning or scalding when necessary.

The outer surfaces of the rings or sleeves are turned round, and their ends are fitted accurately together to present an unbroken surface between the rows or series of teeth or spurs.

It will be observed that the inner end of the board or platform is arranged close under the outer side of the roll F, so as to receive the meat directly therefrom and prevent it from passing around the roll, the cylindrical edge or roller-bar P being designed to assist in guiding the meat from the roll.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

l. The combination, in a nieat-tenderer, of the toothed rolls D E, arranged as described, and the toothed roll F, arranged in front of the lower roll E, the teeth of the roll F passing at their ends close to the surface of the roll E to clear the same, substantially as and for the purpose specified.

2. The combination, in a meat-tenderer, of the upper toothed roll D, carrying a pinion K, the lower toothed roll E, carrying a pinion I smaller than the pinion K, and the toothed roll F, carrying the pinion L, which is geared to the pinion I through the idler M, the crank being attached to the toothed roll E, all constructed and arranged substantially as speciiied.

3. Theeombination, in a lneat-tenderer, of the frame having side plates provided with removable sections or bars at their edges and the rolls mounted in bearings which are formed in the meeting edges of said side plates and sections or bars, whereby the rolls may be dismounted by removingthe sections or bars, substantially as specified.

4. The combination, in a meat-tenderer, of the frame having vertical side plates B B', provided with removable sections or bars b b b b', and the toothed rolls D E F, mounted in bearings formed in the meeting edges of said side plates and their removable sections or bars and geared together for simultaneous operation, said rolls being extended laterally beyond the side plate B', as seen at D E F.

5. In a meat-tenderer, the combination of a plurality of tooth'ed rollers, one end of the said rollers being supported in a suitable frame and being connected by suitable gearing, the opposite ends of the said rollers pro- IOO` IIO

j ecting outwardly from the fraime, as (lecontrary to the scribed.

In testimony whereof I affix my signature in presence of two Witnesses.

CARL BISCHOFF.

direction of the roll E, as de-` Witnesses:

H. 'W. STRICKLER, C. E. DoYLE. 

